/* Neuronal Data Analyzer Lab support site — shared styles.
   Colours follow the toolbox's own UITheme (navy header, teal accent). */
:root {
  --ink: #1d2638;
  --muted: #5b6577;
  --faint: #8a93a3;
  --bg: #f4f6f9;
  --panel: #ffffff;
  --line: #d8dde5;
  --navy: #2e477a;
  --navy-ink: #ffffff;
  --teal: #2f8691;
  --teal-soft: #e3f1f2;
  --good: #25804f;
  --good-soft: #e5f3ea;
  --warn: #a8660b;
  --warn-soft: #fbf0de;
  --bad: #b3261e;
  --bad-soft: #fbe9e7;
  --demo: #7a4bb0;
  --demo-soft: #f1eafa;
  --track: #e2e6ec;
  --code-bg: #eef1f5;
  --shadow: 0 1px 2px rgba(29, 38, 56, .06), 0 6px 18px rgba(29, 38, 56, .06);
  --display: "IBM Plex Sans Condensed", "Arial Narrow", system-ui, sans-serif;
  --body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --max: 1160px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --ink: #e6eaf1; --muted: #a4adbd; --faint: #7b8597;
    --bg: #11161f; --panel: #19202c; --line: #2b3444;
    --navy: #1f3157; --navy-ink: #e6eaf1;
    --teal: #5cc0cb; --teal-soft: #173238;
    --good: #6fcf97; --good-soft: #17301f; --warn: #e8b35d; --warn-soft: #34281a; --bad: #f2998f; --bad-soft: #3a1f1d;
    --demo: #c4a3ee; --demo-soft: #2a2138;
    --track: #2b3444; --code-bg: #222a38;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 18px rgba(0,0,0,.25);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --ink: #e6eaf1; --muted: #a4adbd; --faint: #7b8597;
  --bg: #11161f; --panel: #19202c; --line: #2b3444;
  --navy: #1f3157; --navy-ink: #e6eaf1;
  --teal: #5cc0cb; --teal-soft: #173238;
  --good: #6fcf97; --good-soft: #17301f; --warn: #e8b35d; --warn-soft: #34281a; --bad: #f2998f; --bad-soft: #3a1f1d;
  --demo: #c4a3ee; --demo-soft: #2a2138;
  --track: #2b3444; --code-bg: #222a38;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 18px rgba(0,0,0,.25);
}

* { box-sizing: border-box; }
html { scroll-padding-top: 80px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 var(--body); }
img { max-width: 100%; height: auto; }
a { color: var(--teal); text-underline-offset: 2px; }
a:hover { color: var(--navy); }
:root[data-theme="dark"] a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }
h1, h2, h3, h4 { font-family: var(--display); line-height: 1.15; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(30px, 4.4vw, 44px); font-weight: 600; }
h2 { font-size: 26px; font-weight: 600; }
h3 { font-size: 19px; font-weight: 600; }
h4 { font-size: 16px; font-weight: 600; }
p, li { max-width: 72ch; }
p { margin: 0; }
code, kbd, .mono { font-family: var(--mono); font-size: .9em; }
code { background: var(--code-bg); border-radius: 4px; padding: 1px 5px; }
pre { background: var(--code-bg); border-radius: 8px; padding: 14px 16px; overflow-x: auto; font: 13.5px/1.5 var(--mono); margin: 0; }
pre code { background: none; padding: 0; }
.eyebrow { font: 500 12px/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--teal); }
.muted { color: var(--muted); }
sup.cite a { font: 500 11px var(--mono); text-decoration: none; padding: 0 1px; }

/* ---------- Site chrome ---------- */
.skip { position: absolute; left: -999px; top: 8px; background: var(--panel); padding: 8px 12px; z-index: 50; }
.skip:focus { left: 8px; }
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: var(--navy); color: var(--navy-ink); }
.site-header .inner { max-width: var(--max); margin: 0 auto; padding-inline: 20px; display: flex; align-items: center; gap: 18px; min-height: 60px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--navy-ink); text-decoration: none; font: 600 18px var(--display); letter-spacing: .01em; }
.brand:hover { color: var(--navy-ink); }
.brand img { flex: none; display: block; }
.nav { display: flex; flex-wrap: wrap; gap: 2px; margin-left: auto; }
.nav a { color: var(--navy-ink); opacity: .85; text-decoration: none; font-size: 14.5px; padding: 6px 10px; border-radius: 6px; }
.nav a:hover { opacity: 1; background: rgba(255,255,255,.1); color: var(--navy-ink); }
.nav a[aria-current="page"] { opacity: 1; background: rgba(255,255,255,.16); }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid rgba(255,255,255,.4); color: var(--navy-ink); border-radius: 6px; padding: 6px 10px; font: 500 14px var(--body); }
.theme-btn { background: none; border: 1px solid rgba(255,255,255,.35); color: var(--navy-ink); border-radius: 6px; padding: 5px 9px; font: 13px var(--body); cursor: pointer; }
@media (max-width: 860px) {
  .menu-btn { display: inline-block; }
  .nav { display: none; width: 100%; flex-direction: column; padding-bottom: 10px; }
  .site-header.open .nav { display: flex; }
}
.demo-strip { background: var(--demo-soft); color: var(--demo); font-size: 13.5px; border-bottom: 1px solid var(--line); }
.demo-strip .inner { max-width: var(--max); margin: 0 auto; padding: 7px 20px; }
.demo-strip a { color: var(--demo); font-weight: 600; }

main { max-width: var(--max); margin: 0 auto; padding-inline: 20px; padding-block: 36px 64px; display: grid; gap: 48px; }
.site-footer { border-top: 1px solid var(--line); background: var(--panel); }
.site-footer .inner { max-width: var(--max); margin: 0 auto; padding: 28px 20px 36px; display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); font-size: 14px; color: var(--muted); }
.site-footer h4 { color: var(--ink); margin-bottom: 6px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }

/* ---------- Page blocks ---------- */
.hero { display: grid; gap: 14px; }
.hero .lede { font-size: 18px; color: var(--muted); max-width: 64ch; }
/* Home page: navy panel with the cover art (the launcher's header picture) along its bottom */
.hero.cover { position: relative; overflow: hidden; background: #2E477A; color: #fff; border-radius: 14px;
  padding: 34px 34px 0; margin-top: 18px; box-shadow: var(--shadow); }
.hero.cover h1 { color: #fff; }
.hero.cover .eyebrow { color: #9fd6dc; }
.hero.cover .lede { color: #d5deec; }
.hero.cover .lede code { background: rgba(255,255,255,.12); color: #fff; }
.hero.cover .btn { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.35); color: #fff; }
.hero.cover .btn:hover { border-color: #fff; }
.hero.cover .btn.primary { background: #5cc0cb; border-color: #5cc0cb; color: #11161f; }
.hero-art { margin: 8px -34px 0; height: clamp(84px, 15vw, 170px); background: url("cover.svg") center / cover no-repeat; }
@media (max-width: 600px) {
  .hero.cover { padding: 24px 18px 0; border-radius: 10px; }
  .hero-art { margin-inline: -18px; }
}
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.btn { display: inline-flex; align-items: center; gap: 8px; font: 600 15px var(--body); text-decoration: none; border-radius: 8px; padding: 10px 18px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); cursor: pointer; }
.btn:hover { color: var(--ink); border-color: var(--faint); }
.btn.primary { background: var(--teal); border-color: var(--teal); color: #fff; }
.btn.primary:hover { color: #fff; filter: brightness(1.06); }
.section { display: grid; gap: 16px; }
.section > p, .section > .muted { color: var(--muted); }
.prose { display: grid; gap: 12px; }
.prose ul, .prose ol { margin: 0; padding-left: 22px; display: grid; gap: 6px; }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px; display: grid; gap: 8px; align-content: start; }
.card p { color: var(--muted); font-size: 14.5px; }
.card .tag { font: 500 11px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--teal); }
a.card { text-decoration: none; color: inherit; }
a.card:hover { border-color: var(--teal); color: inherit; }
.card.flag { border-color: var(--warn); }
.card.flag .tag { color: var(--warn); }
.two { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); align-items: start; }

.chain { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font: 500 14px var(--body); }
.chain span.step { background: var(--teal-soft); color: var(--ink); border-radius: 999px; padding: 4px 12px; }
.chain span.arrow { color: var(--faint); }

.note { border-left: 3px solid var(--teal); background: var(--teal-soft); padding: 10px 14px; border-radius: 0 8px 8px 0; font-size: 14.5px; }
.note.demo { border-color: var(--demo); background: var(--demo-soft); }
.note.warn { border-color: var(--warn); background: var(--warn-soft); }

.io { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.io .card h4 { font: 500 12px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--faint); }
.io ul { margin: 0; padding-left: 18px; font-size: 14.5px; display: grid; gap: 4px; }

/* Tables */
.tablewrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; min-width: 600px; font-size: 14.5px; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font: 500 12px var(--mono); letter-spacing: .05em; text-transform: uppercase; color: var(--faint); }
tr:last-child td { border-bottom: 0; }
td.num { font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.pill { display: inline-block; font: 500 12px var(--body); border-radius: 999px; padding: 2px 10px; white-space: nowrap; }
.pill.ok { background: var(--good-soft); color: var(--good); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.bad { background: var(--bad-soft); color: var(--bad); }
.pill.demo { background: var(--demo-soft); color: var(--demo); }

/* Figures: every data figure carries a DEMO badge; illustrations carry a credit */
figure { margin: 0; display: grid; gap: 8px; }
figure .shot { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
figure .shot img { display: block; width: 100%; }
figure .shot, .tour .frame { display: flex; flex-direction: column; }
figure .shot > .badge, .tour .frame > .badge { order: -1; flex: none; }
figcaption { font-size: 13.5px; color: var(--muted); }
.badge { display: block; font: 600 11px var(--mono); letter-spacing: .06em; text-transform: uppercase; background: var(--demo); color: #fff; padding: 4px 10px; pointer-events: none; } /* a strip above the image: never covers it */
.badge.illus { background: var(--muted); }

/* ---------- Walkthrough player ---------- */
.tour { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 20px; align-items: start; }
@media (max-width: 920px) { .tour { grid-template-columns: 1fr; } }
.tour .stage { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow); overflow: hidden; }
.tour .frame { position: relative; background: #eef1f5; aspect-ratio: 1250 / 810; display: flex; flex-direction: column; }
.tour .frame img { width: 100%; flex: 1 1 auto; min-height: 0; object-fit: contain; display: block; }
.tour .bar { height: 4px; background: var(--track); }
.tour .bar i { display: block; height: 100%; width: 0; background: var(--teal); }
.tour .controls { display: flex; align-items: center; gap: 10px; padding: 10px 14px; flex-wrap: wrap; }
.ctl { font: 500 13px var(--body); background: var(--bg); color: var(--ink); border: 1px solid var(--line); border-radius: 6px; padding: 6px 12px; cursor: pointer; }
.ctl.primary { background: var(--teal); border-color: var(--teal); color: #fff; min-width: 84px; }
.tour .counter { margin-left: auto; font: 13px var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.tour .side { display: grid; gap: 14px; }
.tour .caption { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; display: grid; gap: 8px; }
.tour .caption .win { font: 500 12px var(--mono); color: var(--faint); }
.tour .caption p { color: var(--muted); font-size: 14px; }
.tour .caption .look { border-top: 1px dashed var(--line); padding-top: 8px; font-size: 13.5px; }
.tour .caption .look b { color: var(--teal); font-weight: 600; }
.tour ol { display: grid; gap: 2px; list-style: none; margin: 0; padding: 0; }
.tour ol button { width: 100%; text-align: left; font: 13.5px var(--body); color: var(--muted); background: none; border: 0; border-radius: 6px; padding: 6px 8px; cursor: pointer; display: grid; grid-template-columns: 26px 1fr; gap: 6px; align-items: baseline; }
.tour ol button .n { font: 500 12px var(--mono); color: var(--faint); font-variant-numeric: tabular-nums; }
.tour ol button[aria-current="step"] { background: var(--teal-soft); color: var(--ink); }
.tour ol button[aria-current="step"] .n { color: var(--teal); }
.tour ol li.app { font: 500 11px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--faint); padding: 10px 8px 2px; }

/* Page-local table of contents */
.toc { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 14px; }
.toc a { text-decoration: none; }

/* References */
ol.refs { padding-left: 22px; display: grid; gap: 10px; font-size: 14.5px; }
ol.refs li:target { background: var(--teal-soft); border-radius: 6px; }
ol.refs .used { font-size: 13px; color: var(--faint); }

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }

/* ---------- Additions for the page set (site.js chrome, guide, figures) ---------- */
html, body { overflow-x: hidden; }
main { padding-inline: 16px; }
@media (min-width: 700px) { main { padding-inline: 20px; } }
.site-header .inner, .demo-strip .inner, .site-footer .inner { padding-inline: 16px; }
.demo-strip code { background: none; padding: 0; color: inherit; }
.site-footer p { margin: 0 0 6px; }
.badge { white-space: normal; line-height: 1.35; }
@media (max-width: 520px) { .badge { font-size: 9.5px; letter-spacing: .03em; padding: 3px 8px; } }
a.ctl { text-decoration: none; display: inline-block; }
.tour:focus-visible { outline: 2px solid var(--teal); outline-offset: 4px; border-radius: 10px; }
.tour .caption h3 { font-size: 18px; }
@media (prefers-reduced-motion: no-preference) { .tour .bar i { transition: width .25s ease; } }

.lede { font-size: 18px; color: var(--muted); max-width: 64ch; }
.page-head { display: grid; gap: 10px; }
.page-head .lede { margin-top: 2px; }
.shot-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
figure.illus .shot { background: #fff; }
.credit { font-size: 12.5px; color: var(--faint); }

/* Numbered steps (quick starts) */
ol.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; counter-reset: s; }
ol.steps > li { counter-increment: s; display: grid; grid-template-columns: 28px 1fr; gap: 10px; align-items: start; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; max-width: none; font-size: 15px; }
ol.steps > li::before { content: counter(s); width: 24px; height: 24px; border-radius: 50%; background: var(--teal); color: #fff; font: 600 12.5px/24px var(--mono); text-align: center; }

/* Key numbers */
dl.kv { display: grid; grid-template-columns: minmax(140px, max-content) 1fr; gap: 6px 16px; margin: 0; font-size: 15px; }
dl.kv dt { color: var(--muted); }
dl.kv dd { margin: 0; }
@media (max-width: 520px) { dl.kv { grid-template-columns: 1fr; } dl.kv dd { margin-bottom: 6px; } }

/* Guide: one section per window */
.window { display: grid; gap: 14px; padding-top: 8px; border-top: 1px solid var(--line); }
.window > header { display: grid; gap: 4px; }
details.trouble { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; }
details.trouble > summary { cursor: pointer; padding: 10px 14px; font-weight: 600; }
details.trouble[open] > summary { border-bottom: 1px solid var(--line); }
details.trouble .tablewrap { border: 0; border-radius: 0 0 10px 10px; }
table.plain { min-width: 0; }
table.plain td:first-child { width: 38%; font-weight: 500; }
@media (max-width: 600px) {
  table.stack, table.stack tbody, table.stack tr, table.stack td { display: block; width: 100% !important; min-width: 0; }
  table.stack thead { display: none; }
  table.stack td { border-bottom: 0; padding: 4px 14px; }
  table.stack tr { border-bottom: 1px solid var(--line); padding: 6px 0; }
}
.prose h4 { margin-top: 6px; }
.prose table { min-width: 0; }

/* 404 */
.notfound { text-align: left; display: grid; gap: 14px; padding-block: 40px; }
/* Keep wide children (code, tables) from stretching grid tracks on phones */
main { grid-template-columns: minmax(0, 1fr); }
.section, .prose, .page-head, .window, .two > *, .grid > *, .io > *, .shot-grid > *, .tour > * { min-width: 0; }
ol.steps > li { grid-template-columns: 28px minmax(0, 1fr); }
.section > *, .prose > *, .window > *, ol.steps > li > span > * { min-width: 0; }
:not(pre) > code { overflow-wrap: anywhere; }
.note { overflow-wrap: anywhere; }
main a { overflow-wrap: anywhere; }
.nav a { padding: 6px 8px; font-size: 14px; }
.theme-btn { white-space: nowrap; }
@media (max-width: 860px) {
  .theme-btn { margin-left: auto; order: 2; }
  .menu-btn { margin-left: 8px; order: 3; }
  .nav { order: 4; }
}
@media (max-width: 860px) { .site-header .inner { gap: 8px; } .menu-btn { margin-left: 0; } }
@media (max-width: 380px) { .brand span { font-size: 16px; } }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .ctl.primary, :root:not([data-theme="light"]) .btn.primary,
  :root:not([data-theme="light"]) .btn.primary:hover, :root:not([data-theme="light"]) ol.steps > li::before { color: #11161f; }
}
:root[data-theme="dark"] .ctl.primary, :root[data-theme="dark"] .btn.primary,
:root[data-theme="dark"] .btn.primary:hover, :root[data-theme="dark"] ol.steps > li::before { color: #11161f; }
:root[data-theme="dark"] .tour .frame { background: var(--track); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .tour .frame { background: var(--track); } }

/* ---------- Grouped navigation (Analyses / Learn / Reference menus) ---------- */
.nav { align-items: center; }
.nav-group { position: relative; }
.nav-toggle { background: none; border: 0; color: var(--navy-ink); opacity: .85; font: 14px var(--body); padding: 6px 8px; border-radius: 6px; cursor: pointer; }
.nav-toggle:hover, .nav-group.open .nav-toggle { opacity: 1; background: rgba(255,255,255,.1); }
.nav-toggle.current { opacity: 1; background: rgba(255,255,255,.16); }
.nav-toggle .caret { display: inline-block; font-size: 11px; margin-left: 2px; transition: transform .15s ease; }
.nav-group.open .caret { transform: rotate(180deg); }
.nav-menu { display: none; position: absolute; right: 0; top: calc(100% + 6px); min-width: 300px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow); padding: 6px; z-index: 30; }
.nav-group.open .nav-menu { display: block; }
.nav .nav-menu a { display: block; color: var(--ink); opacity: 1; padding: 8px 10px; border-radius: 7px; line-height: 1.35; }
.nav .nav-menu a strong { display: block; font-weight: 600; font-size: 14.5px; }
.nav .nav-menu a span { display: block; color: var(--muted); font-size: 12.5px; }
.nav .nav-menu a:hover { background: var(--teal-soft); color: var(--ink); }
.nav-family { font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding: 8px 10px 2px; }
.nav-family:first-child { padding-top: 4px; }
.nav .nav-menu a[aria-current="page"] { background: var(--teal-soft); box-shadow: inset 3px 0 0 var(--teal); }
@media (max-width: 860px) {
  .nav { align-items: stretch; }
  .nav-toggle { width: 100%; text-align: left; padding: 8px; }
  .nav-menu { position: static; min-width: 0; margin: 2px 0 6px 10px; box-shadow: none; border-color: rgba(255,255,255,.2); background: rgba(255,255,255,.06); }
  .nav .nav-menu a { color: var(--navy-ink); }
  .nav .nav-menu a span { color: var(--navy-ink); opacity: .7; }
  .nav .nav-menu a:hover, .nav .nav-menu a[aria-current="page"] { background: rgba(255,255,255,.12); color: var(--navy-ink); }
  .nav .nav-menu a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--navy-ink); }
  .nav-family { color: var(--navy-ink); opacity: .6; }
}
@media (prefers-reduced-motion: reduce) { .nav-toggle .caret { transition: none; } }

figure[hidden] { display: none; }